how much chlorine, Cl 2, do you need to order to react completely with 500 kg of platinum, Pt, to make cisplatin, PtCl 2(NH 3) 2?

Answer 1

Convert 500 kg Pt to mols. mols = grams/molar mass = ?

Using the coefficients in the balanced equation, convert mols Pt to mols Cl2.

Convert mols Cl2 to grams. g = mols x molar mass.